AECL's evolutionary CANDU reactor design is visionary in its approach, unique for its on-power refuelling capability, and demonstrated over years of safe, economical, and reliable power production. The CANDU product line, developed in Canada, includes the Generation III+ 1,200 MWe class ACR (Advanced CANDU Reactor), known as the ACR-1000, and the 700 MWe class CANDU 6 power reactor.

CANDU reactors have been operating in Canada since 1962, and abroad since 1972. The CANDU leading-edge technology and design has been continuously improved to reduce cost, enhance performance, and increase the plant life up to 60 years. This continuous evolution assures maximum performance – a result of AECL's long-term commitment to its advancement through research and product development, utility input and years of experience.

CANDU units have been constructed in North America, South America, Europe and Asia. There are 48 heavy water reactors based on the CANDU design in operation, under construction, or under refurbishment worldwide.

CANDU nuclear power stations have consistently proven to be competitive with other types of nuclear power plants, while offering significant advantages to their operators. Some of the design features and characteristics of the CANDU reactor are:

• on‑power fueling
• passive safety features
• pioneer of computer controlled plant
• two independent and diverse shutdown systems
• load following
• meets latest security requirements.